Other

Electrical Density Gauge, LLC

Dennis M Anderson

William J Ehni

Chelsea A Doyle

Dave B Straley

Devon E Anderson

Lynn M T Anderson

John W Lundstrom

Darrell R Word

Stephan R-k Fuelling

Willian Ehni

Stephan R-K Fuelling

A surgical site infection management lighting system that is effective and safe for human use to reduce or eliminate surgical site infections. The system provides multiple focused electromagnetic radiation frequencies at minimal energy levels for surgical and medical procedures that kills pathogens with electromagnetic radiation sources. The system includes an aiming laser, a distance sensor, a camera for providing images of the surgical site, and a motion sensor for providing control parameters. Fused silica lenses are utilized to focus the visible light for high illumination and selected electromagnetic radiation frequencies at minimal energy levels that are lethal to pathogens. The lighting system can be associated with an articulable arm, a mobile base stand, a handheld unit or a head-mounted unit.

Surgical and patient care lighting apparatus, method and controls that use multiple wavelengths and bandwidths of pathogen killing visible and ultraviolet light

Medical, surgical and patient lighting apparatus, system, method and controls with pathogen killing electromagnetic radiation

Test apparatus for testing porous material such as used in roadway base or building foundations may be deployed in the field at various test sites. The test apparatus includes electrodes that contact the porous material under test and a sensor unit that supplies electromagnetic signals to the porous material. Response signals reveal electrical parameters such as complex impedance which can be equated to material properties such as density and moisture content. Reference may be made to empirical correlations made in laboratory tests using the same test apparatus to enable the effects of the test apparatus on the measurement to be accounted for. The electrodes may include flexible coplanar electrodes that reduce air gaps when in contact with the porous material.

Analysis of porous material using laboratory calibrated test apparatus and sample data

The object of the Electrical Density Gauge (EDG) invention is to provide a low cost, portable, non-nuclear, and rugged field-use device that measures dry density in soils that have been constructed for use as road-beds and building foundations. This data is used to ensure the quality control of the constructed foundation. The electrical properties of soil are measured at a radio frequency using probes driven into the soil. To calibrate EDG, certain algorithms of these electrical properties are related to physically measured wet densities and unit weights of water for a plurality of calibration test spots. Correlation regressions are found, that are used to convert values of the electrical properties measured at unknown field test spots into values of dry density.

Electrically measuring soil dry density

The invention includes an apparatus for determining geo-electric data and the density of a porous material. A resistivity-measuring device applies an electrical current through an electrode array to that is part of a non-electrical conductive test cell that is used to measure the resistivity of the porous material that is the test cell. The test cell is a made of a rigid non-electrically conductive material and is a standard shape and dimension. The material that is the test specimen is compacted into the test cell using a standard technique so that the physical properties of the test specimen my calculated. In addition to making a set of standard physical measurement (material unit density and unit moisture content) the test cell is used to measure electrical properties of the test specimen so that a set of electrical constants can be determined for the material under test. The above data is applied with a general geophysical in-situ density equation to establish geo-electrical constants that are unique to the density characteristics of the porous material.

Electrical geophysical apparatus for determining the density of porous materials and establishing geo-electric constants of porous material

The invention includes a method and device for determining the in-situ density of a porous material. A resistivity measuring device applies an electrical current through an electrode array to measure the resistivity of the porous material. The resistivity measuring device may also be used to measure the resistivity of a pore filling fluid. A formation factor and in-situ density constants of the porous material are determined using empirical methods. In-situ moisture content of the porous material is determined. The above data is applied to a general geophysical in-situ density equation to calculate the in-situ density of the porous material.

Electrical geophysical methods and apparatus for determining the in-situ

A method and device for determining the hydraulic conductivity of porous materials is disclosed. The method uses a general permeability equation for calculating the hydraulic conductivity. The resistivity of the porous material is measured when the porous material is at least partially saturated with a pore filling fluid. Other data, such as a formation factor, permeability constants of the porous material, and in situ moisture content of the porous material may also be derived or measured. The geophysical permeability equation is then used to calculate the hydraulic conductivity of the porous material from the measurements and data. Methods are also disclosed which provide an average hydraulic conductivity over a given area. A device for determining hydraulic conductivity of a porous material is disclosed which utilizes a plurality of electrodes for conducting electricity to the porous material. A resistivity meter may be attached between the electrodes for measuring the resistivity. The device may include an electrode positioning device for positioning the electrodes in a predetermined spacial relationship.

Geophysical methods and apparatus for determining the hydraulic

An apparatus for measuring and dispensing sugar syrups from a hopper into a mold and employing a mounting block which defines at least one cavity for housing a dispensing valve. The valve comprises a movable cylinder operable by a first pneumatic means and a piston means operable by a second pneumatic means. A pair of sequencing valves are employed for actuating the first and second pneumatic means in a timed sequence for effecting the movement of the cylinder and piston of the dispensing valve.

Growing community of inventors

Carson City, NV, United States of America

Dennis M Anderson